I was having a conversation about this the other day.
You can be a bad driver all day long and have no problems what-so-ever.
Despite what we all think, most drivers are very good and capable. They pick up the slack and compensate for the bad driving by taking evasive action or giving a wide berth.
It's when 2 bad drivers meet that you get accidents.
I expect David had ridden that road a hundred times before with no problems so he felt confident enough to go that bit faster.
I expect the Clio driver had pulled out without looking before but, thanks to the skill of other drivers, had never caused an accident.
It was just bad timing that these 2 people were on the same stretch of road at precisely that point in time.
A few seconds either way and it would've be a happier story.
Both were at fault but it's just unfortunate one of them lost their life.
Judging by what his mum said, he seemed like a really cool guy.